The LTC3803MPS6-5#TRPBF from Linear Technology is a highly efficient, constant frequency, current mode flyback DC/DC controller. This compact and robust component is specifically designed for isolated and non-isolated power supply applications, providing a precise, stable, and reliable power conversion solution.

Key Features

• Operating Frequency: The controller operates at a fixed frequency of 200kHz, which allows for a good balance between efficiency and component size, reducing noise and simplifying the design of the power supply.
• Wide Input Voltage Range: It supports a wide input voltage range from 9V to 30V, making it versatile for various applications, from automotive to industrial systems.
• Low Start-Up Current: The device features a low start-up current of just 9µA, which minimizes power loss during the initial power-up phase and enhances overall efficiency.
• Low Operating Current: With an operating current of only 1.5mA, the LTC3803MPS6-5#TRPBF helps to extend the life of battery-powered devices by conserving power.
• No External Power Components: This controller does not require any external power components such as a bootstrap diode, simplifying the design and reducing the bill of materials.
• Adjustable Soft-Start: The adjustable soft-start function limits the inrush current during startup, providing protection for both the power supply and the load.

Applications

The LTC3803MPS6-5#TRPBF is ideal for a wide range of applications, including but not limited to:

• Isolated Telecom Power Supplies
• Industrial Power Supplies
• Medical Equipment
• Automotive Power Systems
• Power-over-Ethernet (PoE) Systems

Reliability and Quality

Linear Technology ensures that its products meet the highest standards of quality and reliability. The LTC3803MPS6-5#TRPBF is no exception, offering consistent performance and long-term durability for critical applications where power supply stability is essential.

Package and Availability

The controller is available in a compact 6-lead ThinSOT package, which is suitable for space-constrained applications. Its part number includes the suffix 'TRPBF', indicating that the product is provided in tape and reel packaging and is lead-free, adhering to RoHS standards.